From: Peter Bailey <pbailey@...>
Date: 2010-05-05T21:46:05+09:00
Subject: Re: Why can't I do a "to_i?"

Sorry. I meant a "to_f" there in the subject line, although it happens 
with to_i, too.


Peter Bailey wrote:
> Hello,
> I keep getting an "undefined method `to_f'" for this simple script. Can
> someone help me? I'm interrogating jpeg graphics files and I need to log
> their widths and depths, in picas.
> Thanks a lot,
> Peter
> 
> Dir.chdir("T:/ioma/temp")
> Dir.glob("*.jpg").each do |file|
>  fileinfo    = `alchemy #{file} -x`
>  filewidth        = fileinfo.match(/Width x Height: ([0-9]{1,5}) x
> ([0-9]{1,5})[1]/)
>  filedepth        = fileinfo.match(/Width x Height: ([0-9]{1,5}) x
> ([0-9]{1,5})[2]/)
>  fileres        = fileinfo.match(/Dots per inch: [0-9]{1,5}/)
> 
>  newfilewidth    = (filewidth.to_f / 200) * 6
>  newfiledepth    = (filedepth.to_f / 200) * 6
> 
>  File.open("t:/ioma/iomafiles.log", "a") { |f| f.print "#{file}  width:
> #{newfilewidth.to_f.round} depth: #{newfiledepth.to_f.round}\n" }
> end

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